MONTGOMERY, Alabama — A former Alabama corrections officer has pleaded guilty to civil rights violations and obstruction of justice.

Officials say Matthew E. Davidson pleaded guilty in the U.S. District Court in Montgomery to two counts of violating the civil rights of former inmate at Ventress Correctional Facility in Clayton. Davidson also pleaded guilty to conspiring with other corrections officers to try covering the incident up.

Authorities say Davidson assaulted Mack before delivering him to another area of the prison where he knew the man would be beaten again. Davidson and his accomplices have said a supervisor continued beating Mack and instructed them to lie about the incident in later reports.